main{
    flex: 1;
    overflow: scroll;
    /* 超出显示滚动条 */
    padding: 5%;
   
    input{border: 1px solid rgb(102, 82, 82); height: 45px;border-radius: 20px;}
    ul{
        display: flex;
        flex-direction: column;
        li{display: flex; 
            align-items: center;
            margin-top: 20px;
            h2{margin-left: 80px;}
         img{width: 100px; height: 100px; border-radius: 50%;}
        }
    }
}